%0 Journal Article %K Size distribution %K Particle number %K Tunnel %K Emission %K Motor vehicle %A George A Ban-Weiss %A Melissa M Lunden %A Thomas W Kirchstetter %A Robert A Harley %B Journal of Aerosol Science %D 2009 %T Size-Resolved Particle Number and Volume Emission Factors for On-Road Gasoline and Diesel Motor Vehicles